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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-07-15 21:25:41 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-07-30 00:34:40 +0300
commit941a7658e065e339ebdaf27b9a7702f9935d1d4a (patch)
tree0f13c29b3d6864099610eef08b49855d6dd552d3 /tools/perf/include
parentb3c303be4c35856945cb17ec639b94637447dae2 (diff)
downloadlinux-941a7658e065e339ebdaf27b9a7702f9935d1d4a.tar.xz
perf include bpf: Add bpf_tail_call() prototype
Will be used together with BPF_MAP_TYPE_PROG_ARRAY in tools/perf/examples/bpf/augmented_raw_syscalls.c. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-pd1bpy8i31nta6jqwdex871g@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/include')
-rw-r--r--tools/perf/include/bpf/bpf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/include/bpf/bpf.h b/tools/perf/include/bpf/bpf.h
index 2eac6d804b2d..b422aeef5339 100644
--- a/tools/perf/include/bpf/bpf.h
+++ b/tools/perf/include/bpf/bpf.h
@@ -45,6 +45,8 @@ struct ____btf_map_##name __attribute__((section(".maps." #name), used)) \
static int (*bpf_map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags) = (void *)BPF_FUNC_map_update_elem;
static void *(*bpf_map_lookup_elem)(struct bpf_map *map, void *key) = (void *)BPF_FUNC_map_lookup_elem;
+static void (*bpf_tail_call)(void *ctx, void *map, int index) = (void *)BPF_FUNC_tail_call;
+
#define SEC(NAME) __attribute__((section(NAME), used))
#define probe(function, vars) \